题目链接
回溯
class Solution {List<String> res new ArrayList<String>();StringBuilder str new StringBuilder();HashMap<String, String> Sites new HashMap<String, String>();public List<String> letterCombinations(String digit…
1 RMAN备份操作
1.1 基本操作
基本的控制和数据文件备份
RMAN> CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO /tmp/backup/cs_%F;new RMAN configuration parameters:
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO /tmp/backu…